Retouching-machine.



G. CHARLTON.

RETOUCHING MACHINE.

APPLICATION FILED SEPT. 13, 1915.

1,173,410. Patented Feb. 29,1916.

THE COLUMBIA PLANOGRAFH co., WASHINGTON. n. c.

. UNITED STATES PATENT oEEIcE.

GEORGE CHARLTON, OF DETROIT, MICHIGAN.

RETOUCHING-MAGHINE.

Application filed September 13, 1915.

To all whom it may 007206772! Be it known that I, GEORGE CHARLTON, a citizen of the United States of America, residing at Detroit, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Retouching-Machines, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to a retouching instrument particularly designed for photographers and artists adapted for retouching photographic negatives, solio prints and pictures.

The primary object of my invention is to provide a mechanically or electrically operated pencil or stylus by which lines may be softened, shadows raised, and the density of negative portions increased or decreased by inscribed or overlapping circles in contradistinction to the dots, lines and hook methods commonly used.

Another object of my invention is to provide a pencil or stylus with a novel pencil holder or wobbler shaft adapted to produce inscribed or overlapping circles of various sizes; the instrument having means whereby the action of the pencil holder or wobbler shaft may be adjusted.

A further object of my invention is to provide a retouching instrument wherein the parts are constructed with a view of reducing the cost of manufacture and at the same time retain the features by which accuracy, simplicity and ease of assembling are secured, and with such ends in view, my invention resides in the novel construction to be hereinafter specifically described and then claimed.

Reference will now be had to the drawing, wherein Figure 1 is a longitudinal sectional view of the instrument; Fig. 2 is a plan of the same; and Fig. 3 is an enlarged cross sectional View taken on the line III-III of Fig. 1.

The instrument comprises a tubular handle section or barrel 1, a point section 2, and a tip section 3. The handle section 1 has one end thereof reduced and interiorly screwthreaded as at 4, to receive the tip section 3, and the opposite end of the handle section 1 is interiorly screwthreaded as at 5, to receive the reduced exteriorly screwthreaded end of the point section 2.

Mounted in the tip section 3, contiguous Specification of Letters Patent.

Patented Feb. 29, 1916.

Serial No. 50,339.

to the ends thereof, are bearings 6 and 7 for av longitudinal shaft 8 having a collar 9 abutting the bearing 7, to limit the inward movement of said shaft. The shaft 8 extends out of the rounded end 10 of the tip section 3 and is coupled, as at 11, to a flexible shaft 12 adapted to be driven by an elecric motor or from a suitable source of power. The inner end of the shaft 8 extends into the handle section 1 and is provided with a detachable wobbler head 13 on which is detachably mounted a cap 14. The wobbler head 13 has an eccentrically disposed recess 15 for the spherical head 16 of a wobbler shaft or pencil holder 17 extend ing longitudinally of the sections 1 and 2. The detachable cap 14 has an opening providing clearance for the inner end of the wobbler shaft, whereby this end of the shaft may travel in the arc of the circle when the wobbler head 13 is revolved through the medium of the shaft 8. The wobbler shaft 17 has flat facets and is preferably rectangular in cross section whereby a spherical body or ball 18 can be mounted upon said shaft for rotative continuity therewith and yet permit of said spherical body or ball sliding upon the shaft. The spherical body or ball 18 is loosely held in a sectional socket member 19 slidable in the hand section 1 of the instrument. This hand section has opposed longitudinal slots 20 and slidable on said hand section, at the slots 20, is a knurled band or ferrule 21 provided with screws 22 extending through the slots 20 into the socket member 19. The hand section 1, adjacent the slots 20 is graduated, as shown in Fig. 2, to permit of the socket member being shifted a desired distance to regulate the action or movement of the wobbler shaft 17.

The wobbler shaft or pencil holder 17 eX- tends through the point section 2 of the instrument and terminates in a split holder 23 provided with a clamping sleeve or nut 24, whereby a pencil or stylus may be firmly held by the outer end of the wobbler shaft 17.

In operation the diameter of the circle described by the inner end of the wobbler shaft 17 is constant and the diameter of the circle described by the outer end of said shaft may be varied by shifting the socket member 19 in the handle section 1 of the instrument. It is therefore possible to produce inscribed circles or overlapping scrolls of various sizes, and when the wobbler shaft is driven at a high speed, the operation of retouching a negative can be expeditiously and accurately performed. As artistic skill is required in retouching a negative valuable time is a factor and can be materially reduced by using an instrument in accordance with this invention. It is also possible to perfectly smooth out lines, sharpen shadows, increase and'decrease the density of portions of a negative, and completely eradicate blemishes and imperfections. This can be accomplished by using a pencil in the instrument and by using a stylus .it is possible to operate upon a soft photographic negative before hardening the same.

The various sections of the instrument constitute a casing or barrel presenting a smooth exterior surface, which permits of an operator easily and accurately manipulating the instrument when retouching a negative or picture.

- It is thought that the operation and utility of my improved instrument will be apparent without further description and while in the drawing there is illustrated a preferred embodiment of my invention it is to be understood that the structural elements are susceptible to such variations and modifications as fall within the scope of the appended claims.

What I claim is 1. A retouching instrument comprising a casing, a driven shaft extending'in one end thereof, a wobbler head on the inner end of said shaft, a. Wobbler shaft connected to said Wobbler head. a holder on the outer end of said Wobbler shaft, and means shiftable longitudinally of said casing, as a bear- Copies of this patent may be obtained for five cents each,

ing for said Wobbler shaft adapted to regulate the movement of the outer end of said wobbler shaft.

2. A I retouching instrument comprising a casing, a driven shaft extending into one end of said casing, a Wobbler head on the inner end of said shaft, a wobbler shaft connected to said Wobbler head and extending out of said casing, a pencil holder on the outer end of said Wobbler shaft, and a socket member adjustable longitudinally of the shaft in said casing and providing abearing for said Wobbler shaft intermediate the ends thereof.

3. A retouching instrument comprising a handle section, a tip section and a point section, a driven shaft in said tip section and extending into said handle. section, a wobbler head on the inner end of said shaft, a Wobbler shaft longitudinally of said handle and point sections connected to said Wobbler head, a pencil holder on the outer end of said wobbler'shaft, and means shiftable longitudinally of'said handle section as a bearing for saidwobbler shaft adapted to regulate the movement of the outer end of said Wobbler shaft.

i. In a retouching instrument, a casing,

a socket member slidable in said casing, a

ball in said socket member, a Wobbler shaft slidable in said ball, a pencil holder on the outer end of said shaft, and means in said casing adapted to impart a wobbling movement to said shaft.

In testimony whereof I afiix my signature.

in presence of two witnesses.

GEORGE CHARLTON.

by addressing the Commissioner of Patents,

Washington, D. C. 

